US Bridges

Loop 101 over Olive Ave

Fair

Maricopa County, Arizona · 9.27 MI N JCT I-10 · Structure no. 02035

Built
1987
38 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
160 ft
1 main span
Daily traffic
154,210
2021 count
Owner
State
State Highway Agency

About this bridge

Loop 101 over Olive Ave is a prestressed concrete box beam or girders - single or spread carrying Loop 101 over Olive Ave in Maricopa County, Arizona. It was built in 1987, so it is 38 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 154,210 vehicles a day, roughly 7% of them trucks, projected to reach 154,220 by 2041. The structure is 160 ft (48.8 m) long and 145 ft wide.

Location

Open in Google Maps
CarriesLoop 101
CrossesOlive Ave
Location9.27 MI N JCT I-10
RouteState Highway 101
CountyMaricopa County
StateArizona
Coordinates33.566, -112.2572
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span158 ft (48.2 m)
Deck width145 ft (44.3 m)
Roadway width139 ft (42.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic154,210 (2021)
Projected traffic154,220 by 2041
Trucks7%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Loop 101 over Olive Ave built?

It was built in 1987, making it 38 years old in 2025.

What condition is Loop 101 over Olive Ave in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Loop 101 over Olive Ave carry?

About 154,210 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Loop 101 over Olive Ave?

The structure is 160 ft (48.8 m) long with a longest span of 158 ft (48.2 m) and a deck 145 ft wide.

Who owns Loop 101 over Olive Ave?

It is owned by the State Highway Agency.